What amp battery charger works better on a marine battery?
A. I prefer a 6 amp trickle charger rather than a 10 amp manual charger. A 10 amp charger will charge batteries faster, but will also boil the water and acid from a battery faster. The trick to a long-lasting battery is to keep the water level at a maximum and maintain a constant hot charge. By using a slow 6 amp charger you can leave the batteries on charge constantly when you are not fishing without any damage to your batteries. I always make it my first chore to hook up the chargers after I come in from a fishing trip, no matter how long I am going to stay before going again. The slow, steady charge will give you a longer-lasting charge.